Any comprehensive review of green energy and its politics and policies has to include the name of wealthy liberal Tom Steyer—who has been called the environmental movement’s new “Daddy Warbucks.” Having made his billions from his tenure atop Farallon Capital Management—much of it from coal projects around the world—Steyer apparently had an environmental epiphany and now wants to atone for his past sins by trying to save the planet from manmade climate change.